I've only had to deal with a few thank tha lawd/knock on wood..I've tried aptasia x, which clearly hurt them, but they'd always come back, tried boiling water with no luck..I did see a demo of the wand at a local club meeting and..that thing is AWESOME..if you have a local club/forum, or just know some local reefers, try to get a few people to pitch in on the purchase and then pass it around..then everyone wins.
Now on to what has actually worked for me..this is only relevant if you have access to hypo needles. (My mom is diabetic..I'm not a junkie or something lol)
Anywho, suck up some lemon juice, and inject it directly into the bad boys. 1-2 ml seems to be more than enough..it will not bother corals *disclaimer* I am not liable to damage of coral haha
Last week I injected one that was in the middle of a frag of half fire and ice and half scrambled egg zoas..they didn't even seem to notice.
If you choose to go this route, I suggest only doing a couple at a time so you don't foul up your water..the key is to get it IN the aptasia, not just squirt it on them.
Good luck, and I hope this helps!
